Shoe heel reinforcing dowel and top lift



July 27, 1965 P- H. POWELL SHOE HEEL REINFORCING DOWEL AND TOP LIFTFiled May 12, 1964 FIG.

FIG. 2.

United States Patent 3,196,560 SHOE HEEL REINFORCING DOWEL AND TOP LIFTPeter Harry Powell, Hessle, England, assignor to Hollis Heels Limited,Yorkshire, England, a British company Filed May 12, 1964, Ser. No.366,768 Claims priority, application Great Britain, Aug. 19, 1963,32,788/63 Claims. (Cl. 3634) The present invention relates to a combinedreinforcing dowel and metal top lift for narrow high heels of ladiesshoes, and more particularly to a device of this character comprising apin member and a lift member, the pin member passing completely throughthe lift member and being secured to the lift member by deformationsformed in the upper surface of the lift member.

Such reinforcing dowels have axially extending flutes, ridges,serrations or ribs which during the forcing of the dowel into thepreformed recess bite into the material of the heel to prevent the doweland top lift thereon from rotating relative to the heel and provide fora good grip in the recess.

The tip lift must be firmly secured to the dowel so that it will notturn relative thereto or become loose and possibly fall off, and theobject of the present invention is to provide a re-inforcing dowel pinmember with a metal top lift member firmly secured thereto, and whichmay be inexpensively manufactured.

To this end, according to the present invention, the heel re-inforcingdowel comprises a metal pin member with a circumferentially spacedlongitudinally extending series of ridges formed on its lateral surfaceand extending from its fiat lower end along at least part of its lengthand a metal top lift member placed as a close fit on the flat lower endand locked thereto by deformation of the metal of the tip lift whichbites into complementary deformations in the ridges of the pin member.

The metal of the tip lift may be deformed by pressure, spinning or blowsand the lift member is preferably deformed on the upper side of the tiplift from which the pin member extends upwardly.

The lower end of the dowel extends completely through the top liftmember terminating substantially flush with the lower face of the toplift and in use the striking of the top lift on the ground tends todeform the interface contact at the lower end of the pin member and thusaddi tionally lock the top lift to the dowel stem.

The invention is by way of example illustrated in the accompanyingdrawings in which:

FIG. 1 is an elevation of the combined reinforcing dowel and top lift,

FIG. 2 is a section on the line II-II of FIG. 1,

FIG. 3 is a vertical section, and

FIG. 4 is a view similar to FIG. 2 showing alternative deformation ofthe metal of the tip lift.

The re-inforcing dowel comprises an elongated metallic pin member 1 witha circumferentially spaced longitudinally extending series of ridges 2formed on the lateral surface thereof and which extend from the flatlower end upwardly over at least part, and preferably the greater part,of the length of the pin member 1 towards its upper end which isconveniently tapered as at 3 to facilitate its entry into the usualpreformed recess in a heel (not shown).

The top lift member 4 is also metallic and conveniently circular with acentral axial bore which receives the lower end of the pin member as aclose fit and is then locked to the pin member 1 by simultaneousdeformation of the metal of pin member and lift member by pressure,spinning or blows. Thus, an annular groove 5 may be formed in the uppersurface of the top lift member 4 so that the metal at the inner side ofgroove 5 is forced into the metal of ridges or at least into spacesbetween the ridges 2, substantially as indicated in FIG. 3. Thisdeformation is preferably formed in the surface of the top lift member 4from which the dowel extends, as illustrated in the drawings.

In a modification illustrated in FIG. 4 the metal of the top lift isdeformed by a tool which forms a plurality of depressions 6 whichlikewise force part of the metal of the top lift into the metal of theridges 2 or at least into the recesses between the ridges 2 to lock thetop lift firmly to the pin member 1.

The deformation of the metal of the top lift and its forcing into themetal of the pin or spaces between the ridges 2 not only locks the toplift member 4 to the pin member 1 but also effectively prevents itrotating relative thereto.

While I have shown and described what I believe to be the bestembodiments of my invention, it will be apparent to those skilled in theart that various changes and modifications may be made therein withoutdeparting from the spirit and scope of the invention as defined in theappended claims.

I claim:

1. A combined reinforcing dowel and top lift, comprising: an elongateddowel pin member tapered at its upper end and flat at its lower end; atop lift member through which said dowel member extends downwardly, saidflat end being substantially flush with the lower face of said liftmember; and securing means consisting of at least one deformation formedin the upper portion of said lift member, said deformation extendinginto a complementary deformation formed in said pin member and spacedfrom said flat end thereof.

2. A combined reinforcing dowel and top lift, comprising: an elongatedmetallic dowel pin member tapered at its upper end and flat at its lowerend, said pin, said pin member having a circumferentially spacedlongitudinally extending series of ridges formed therein which extendfrom a location intermediate its ends to said flat surface; a metallictop lift member, said pin member extending centrally through said liftmember with said flat end substantially flush with the lower face ofsaid lift member; and securing means consisting of at least onedeformation formed in said lift member, said deformation extending intoat least one complementary deformation formed in said series of ridges.

3. A combined reinforcing dowel and top lift, comprising: an elongatedmetallic dowel pin member tapered at its upper end and flat at its lowerend, said pin, said pin member having a circumferentially spacedlongitudinally extending series of ridges formed therein which extendfrom a location intermediate its ends to said fiat surface; a metallictop lift member, said pin member extending centrally through said liftmember with said fiat end substantially flush with the lower face ofsaid lift member; and securing means consisting of at least onedeformation formed in said lift member, said deformation extending intoat least one of the spaces between adjacent ones of said ridges.

4. A combined reinforcing dowel and top lift, comprising: an elongatedmetallic dowel pin member tapered at its upper end and flat at its lowerend, said pin, said pin member having a circumferentially spacedlongitudinally extending series of ridges formed therein which extendfrom a location intermedate its ends to said flat surface; a metallictop lift member, said pin member extending centrally through said liftmember with said flat end substantially flush with the lower face ofsaid lift member, said lift member having an annular groove formed inthe upper surface thereof concentric with the longitudinal axis of saidpin member, the radially inner side of said groove closely surroundingsaid ridges; and securing means consisting of at least one deformationformed in the inner A of said pin member, the radially inner side ofsaid groove closely surrounding said ridges, and securing meansconsisting of at least one deformation formed in the inner side of saidgroove, said deformation extending into at least side of said groove,said deformation extending into at 5 one of the spaces between adjacentones of said ridges.

least one complementary deformation formed in said series of ridges.

5. A combined reinforcing dowel and top lift, comprising: an elongatedmetallic dowel pin member tapered at its upper end and flat at its lowerend, said pin, said pin member having a circumferentially spacedlongitudinally extending series of ridges formed therein which extendfrom a location intermediate its ends to said flat surface; a metallictop lift member, said pin member extending centrally through said liftmember with said flat end substantially flush with the lower face ofsaid lift member, said lift member having an annular groove formed inthe upper surface thereof concentric with the longitudinal axisReferences Cited by the Examiner UNITED STATES PATENTS JORDAN FMNKLIN,Primary, Examiner.

FRANK J. COHEN, Examiner.

1. A COMBINED REINFORCING DOWEL AND TOP LIFT, COMPRISING: AN ELONGATEDDOWEL PIN MEMBER TAPERED AT ITS UPPER END AND FLAT AT ITS LOWER END; ATOP LIFT MEMBER THROUGH WHICH SAID DOWEL MEMBER EXTENDS OUTWARDLY, SAIDFLAT END BEING SUBSTANTIALLY FLUSH WITH THE LOWER FACE OF SAID LIFTMEMBER; AND SECURING MEANS CONSISTING OF AT LEAST ONE DEFORMATION FORMEDIN THE UPPER PORTION OF SAID LIFT MEMBER, SAID DEFORMATION EXTENDINGINTO A COMPLEMENTARY DEFORMATION FORMED IN SAID PIN MEMBER AND SPACEDFROM SAID FLAT END THEREOF.